JPS61192634U - - Google Patents

Info

Publication number
JPS61192634U
JPS61192634U JP7497985U JP7497985U JPS61192634U JP S61192634 U JPS61192634 U JP S61192634U JP 7497985 U JP7497985 U JP 7497985U JP 7497985 U JP7497985 U JP 7497985U JP S61192634 U JPS61192634 U JP S61192634U
Authority
JP
Japan
Prior art keywords
short circuit
load
circuit detection
current transformers
receives
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7497985U
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7497985U priority Critical patent/JPS61192634U/ja
Publication of JPS61192634U publication Critical patent/JPS61192634U/ja
Pending legal-status Critical Current

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  • Protection Of Transformers (AREA)

Description

【図面の簡単な説明】
第１図は本考案の一実施例を示す概略構成図、
第２図はタツプ切換動作の順序を示すシーケンス
図である。 １ａ……変圧器タツプ巻線、ｔ１，ｔ２……タ
ツプ、ＶＭ１，ＶＭ２……真空開閉器（負荷開閉
用スイツチ）、ＣＴ１，ＣＴ２……変流器、３ａ
，３ｂ……Ｉ／Ｅ変換器、４ａ，４ｂ……Ｅ／Ｏ
変換器、５ａ，５ｂ……Ｏ／Ｅ変換器、６ａ，６
ｂ……光フアイバケーブル、７ａ，７ｂ……増幅
器、８……アンド回路、９……トランジスタ、１
０……リレー、１２……保護回路。

Claims (1)

  1. 【実用新案登録請求の範囲】 負荷時タツプ切換器の２つのタツプ選択器にそ
    れぞれつながれた２つの負荷開閉用スイツチをそ
    れぞれ流れる負荷電流を別々に検出するべく設け
    た２つの変流器と、 前記２つの変流器の出力信号を入力として両変
    流器の出力信号が同時に存在する時に短絡検出信
    号を出力する短絡検出回路と、 前記短絡検出信号を入力として警報を発生する
    かまたは変圧器への通電を停止させる保護回路と
    を具備したことを特徴とする負荷時タツプ切換器
    の保護装置。
JP7497985U 1985-05-22 1985-05-22 Pending JPS61192634U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7497985U JPS61192634U (ja) 1985-05-22 1985-05-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7497985U JPS61192634U (ja) 1985-05-22 1985-05-22

Publications (1)

Publication Number Publication Date
JPS61192634U true JPS61192634U (ja) 1986-11-29

Family

ID=30615770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7497985U Pending JPS61192634U (ja) 1985-05-22 1985-05-22

Country Status (1)

Country Link
JP (1) JPS61192634U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01295619A (ja) * 1988-05-19 1989-11-29 Mitsubishi Electric Corp 負荷時タツプ切換器の異常監視装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485365A (en) * 1977-12-21 1979-07-06 Fuji Electric Co Ltd Protector for on-load tap changer
JPS56107733A (en) * 1980-01-29 1981-08-26 Mitsubishi Electric Corp Shortcircuit detector for onnload tap changer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485365A (en) * 1977-12-21 1979-07-06 Fuji Electric Co Ltd Protector for on-load tap changer
JPS56107733A (en) * 1980-01-29 1981-08-26 Mitsubishi Electric Corp Shortcircuit detector for onnload tap changer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01295619A (ja) * 1988-05-19 1989-11-29 Mitsubishi Electric Corp 負荷時タツプ切換器の異常監視装置

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